1 barrel carb choke - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dirty230 · 01-29-2015, 11:14 AM

The choke cable on my truck would not pull out.The cable was routed through the wrong hole in the firewall and it was kinked. I cleaned and rerouted the cable it pulls freely now.

When i disconnected it from the carb the choke butterfly was tie wired in the opened position.
I cut the tie wire and hooked the choke cable to the carb. Wahla I can now use the choke to warm up the truck in the mornings.

The problem now is when I push the choke in the truck dies.For now I have to leave the choke pulled out a little to keep it running.
1 barrel rochester on a stock 230
Is there a fix for this.

Mike Wessinger · 01-29-2015, 12:02 PM

I had a very similar issue on mine late last year. If the choke was not out half or more, it just would not run right. It would die out at stops and just wouldn't seem to want to run very well once it did get going. The problem was solved with adjustment to the timing.

**PGSigns** · 01-29-2015, 01:43 PM

The way it was wired open might of been letting the idle be set by the fast idle cam. May try just turning up the idle screw a bit.
Jimmy

dirty230 · 01-29-2015, 02:19 PM

Thanks Mike, Jimmy
I'm going to give your ideas a try.

vince1 · 01-29-2015, 03:10 PM

Napa sells a carb kit for them pretty cheap which come with a new accelerator pump plunger. You could also check that the exhaust manifold flapper thing is working like it should.

dirty230 · 01-30-2015, 11:56 PM

Just a follow up.
The choke is working great. The gas pedal needs to be stepped on to engage and disengage the choke.
Jimmy you were right on. I turned up the idle screw and all is good.
The beast is now idling about 700 rpm.

01-29-2015, 11:14 AM	#1
dirty230 Registered User Join Date: Jan 2015 Location: san jose ca Posts: 28	1 barrel carb choke The choke cable on my truck would not pull out.The cable was routed through the wrong hole in the firewall and it was kinked. I cleaned and rerouted the cable it pulls freely now. When i disconnected it from the carb the choke butterfly was tie wired in the opened position. I cut the tie wire and hooked the choke cable to the carb. Wahla I can now use the choke to warm up the truck in the mornings. The problem now is when I push the choke in the truck dies.For now I have to leave the choke pulled out a little to keep it running. 1 barrel rochester on a stock 230 Is there a fix for this.

01-29-2015, 12:02 PM	#2
Mike Wessinger Registered User Join Date: Nov 2000 Location: Chapin, South Carolina, USA Posts: 87	Re: 1 barrel carb choke I had a very similar issue on mine late last year. If the choke was not out half or more, it just would not run right. It would die out at stops and just wouldn't seem to want to run very well once it did get going. The problem was solved with adjustment to the timing. __________________ 1965 Chevy C10 Stepside Shortbed--2012 370Z Base Gun Metallic--2020 Chevy Silverado RST Crew Cab

01-29-2015, 01:43 PM	#3
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 1 barrel carb choke The way it was wired open might of been letting the idle be set by the fast idle cam. May try just turning up the idle screw a bit. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

01-29-2015, 02:19 PM	#4
dirty230 Registered User Join Date: Jan 2015 Location: san jose ca Posts: 28	Re: 1 barrel carb choke Thanks Mike, Jimmy I'm going to give your ideas a try.

01-29-2015, 03:10 PM	#5
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: 1 barrel carb choke Napa sells a carb kit for them pretty cheap which come with a new accelerator pump plunger. You could also check that the exhaust manifold flapper thing is working like it should.

01-30-2015, 11:56 PM	#6
dirty230 Registered User Join Date: Jan 2015 Location: san jose ca Posts: 28	Re: 1 barrel carb choke Just a follow up. The choke is working great. The gas pedal needs to be stepped on to engage and disengage the choke. Jimmy you were right on. I turned up the idle screw and all is good. The beast is now idling about 700 rpm.



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